: The device will automatically reboot once the process is complete. 📄 Documenting the Process (For Reports/Papers)
Access the device menu (press M/OK ) and go to System > USB Upgrade (or similar, depending on your UI version).
Use a FAT32-formatted USB stick (ideally 8GB or smaller).
A: Yes, from official sources. ZKTeco does not charge for firmware. If a website asks for payment, it is a scam.